The precision of CNC machine tools is guaranteed throughout the entire process of design, manufacturing, installation, debugging, and daily maintenance. In terms of design, a reasonable structure (such as a dragon gate), high-precision transmission system (ball screw and servo motor, etc.), and high-quality components (high-precision bearings, high-resolution encoders) are adopted; During manufacturing, precision machining processes (milling, grinding, grinding, etc.) are utilized and strict quality inspection is carried out; During the installation and debugging process, lay a solid and flat foundation, accurately adjust the level, debug parameters, and compensate for errors through testing equipment; In daily maintenance, regularly maintain mechanical and electrical components, control environmental temperature, humidity, and dust, and ensure the accuracy of the machine tool in all aspects.